Unspecified vulnerability in Autodesk AutoCAD through 2014, AutoCAD LT through 2014, and DWG TrueView through 2014 allows remote attackers to execute arbitrary code via a crafted DWG file.
http://usa.autodesk.com/adsk/servlet/ps/dl/item?id=21972896&linkID=9240618&siteID=123112